Need more info!!!!

here's the scoop.
1. use large fuel line throughout system.
2. use ONLY 0% or 5% moki blend fuel. This engine does not like anything higher!
3. breakin is a long process. What sounds perfect on the ground is too lean in the air. motor will need to run rich for many gallons.
4. What prop. breakin in should be an 18x10.(see #3) After that then you can experiment a little but watch the rpm.

Hope this helps